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A pet feeder includes an assembly base and a feeder body. The assembly base includes a base body having an annular external rim provided with a plurality of pluggable fins. The feeder body includes an annular surrounding wall and a feeding trough defined inside the surrounding wall. The surrounding

A pet feeder includes an assembly base and a feeder body. The assembly base includes a base body having an annular external rim provided with a plurality of pluggable fins. The feeder body includes an annular surrounding wall and a feeding trough defined inside the surrounding wall. The surrounding wall of the feeder body is provided with several sets of slots arranged in a circumferential direction about a central axis thereof and annularly spaced from each other in the circumferential direction. Each of the several sets of slots extends a distinct depth and has a plurality of slots matching the pluggable fins of the assembly base. As such, a height of the feeding trough of the feeder body can be conveniently adjusted when one of the several sets of slots with a specific depth is coupled with the pluggable fins of the assembly base.

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1. A pet feeder comprising: an assembly base including a base body having an annular external rim, a top surface, and a bottom, with the assembly base further including a plurality of pluggable fins protruding from the external rim of the base body and annularly spaced from one another, with each of

1. A pet feeder comprising: an assembly base including a base body having an annular external rim, a top surface, and a bottom, with the assembly base further including a plurality of pluggable fins protruding from the external rim of the base body and annularly spaced from one another, with each of the pluggable fins having an upper end and a lower end, with the upper end of each of the pluggable fins extending beyond the top surface of the base body in a vertical direction above the base body; anda feeder body including an annular surrounding wall and a feeding trough defined inside the surrounding wall, with the surrounding wall of the feeder body including a bottom edge and a top edge, with the surrounding wall of the feeder body provided with several sets of slots arranged in a circumferential direction about a central axis of the surrounding wall and annularly spaced from each other in the circumferential direction, with each of the several sets of slots including a plurality of slots shaped to receive the pluggable fins of the assembly base, with each of the several sets of slots extending from the bottom edge of the surrounding wall toward but spaced from the top edge, with the several sets of slots respectively extending a distinct depth in the vertical direction of the base body, with the plurality of slots in each of the several sets of slots having a substantially identical depth in the vertical direction of the base body, with a spacing between two adjacent slots in each of the several sets of slots being substantially equal to a spacing between two adjacent pluggable fins of the assembly base, wherein the pluggable fins are insertable into and coupled with one of the several sets of slots. 2. The pet feeder according to claim 1, wherein the lower end of each of the pluggable fins is generally level with the bottom of the base body in the vertical direction of the base body. 3. The pet feeder according to claim 2, wherein the upper end of each of the pluggable fins has a raised stop portion on an inner end thereof, wherein the one of the several sets of slots coupled with the pluggable fins of the assembly base resists the upper ends of the pluggable fins and is limited by the stop portions of the pluggable fins. 4. The pet feeder according to claim 1, wherein the upper end of each of the pluggable fins has a raised stop portion on an inner end thereof, wherein the one of the several sets of slots coupled with the pluggable fins of the assembly base resists the upper ends of the pluggable fins and is limited by the stop portions of the pluggable fins. 5. The pet feeder according to claim 1, wherein the lower end of each of the pluggable fins is internally provided with a recess in which a counterweight is received. 6. The pet feeder according to claim 5, wherein the recess is coupled with a non-slip pad which is installed at a lower end of the recess.